Custom-made sulfonated poly (vinylidene fluoride-co-hexafluoropropylene) nanocomposite membranes for vanadium redox flow battery applications

2020 ◽  
Vol 90 ◽  
pp. 106685 ◽  
Author(s):  
Kumar Divya ◽  
Dipak Rana ◽  
Meenakshi Sundaram Sri Abirami Saraswathi ◽  
Alagumalai Nagendran
Keyword(s):  
Vinylidene Fluoride ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Nanocomposite Membranes ◽  
Flow Battery ◽  
Custom Made ◽  
Poly Vinylidene Fluoride ◽  
Vanadium Redox ◽  
Sulfonated Poly

Preparation of sulfonated poly(phthalazinone ether sulfone)/poly(vinylidene fluoride) composite membrane for vanadium redox flow battery

2018 ◽  
Vol 31 (4) ◽  
pp. 388-393
Author(s):  
Junli Zhang ◽  
Yan Zhang ◽  
Yaobin Ma
Keyword(s):  
Single Cell ◽  
Composite Membrane ◽  
Vinylidene Fluoride ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Pvdf Membrane ◽  
Poly Vinylidene Fluoride ◽  
Vanadium Redox ◽  
Sulfonated Poly

A sulfonated poly(phthalazinone ether sulfone) (SPPES)/poly(vinylidene fluoride) (PVDF) composite membrane was prepared through a solution-casting method for vanadium redox flow battery (denoted as VRB). The composite membrane exhibits dramatically lower vanadium ions permeability and better cell performance compared to the pristine SPPES membrane and Nafion 115 membrane. The vanadium ion permeability of SPPES/PVDF membrane is one order of magnitude lower than that of Nafion 115 membrane. In the further work, the VRB single cell with SPPES/PVDF composite membrane shows higher columbic efficiency (92.80%) and energy efficiency (84.1%) at the current density 36 mA·cm−2 compared with the single cell with Nafion 115 membrane. In the self-discharge test, SPPES/PVDF membrane showed 1.7 times longer duration in the open circuit decay than Nafion 115 membrane. With all the good properties and low cost, this new kind of composite membrane is of excellent commercial prospects as an ion exchange membrane for VRB systems.

Sulfonated poly(ether sulfone)/poly(vinylidene fluoride) hybrid membrane for vanadium redox flow battery

2016 ◽  
Vol 29 (5) ◽  
pp. 602-607
Author(s):  
Shibin Liu ◽  
Xiangcai Meng ◽  
Jing Wang ◽  
Jianwei Xu
Keyword(s):  
Vinylidene Fluoride ◽  
Low Cost ◽  
Cell Performance ◽  
Vanadium Redox Flow Battery ◽  
Redox Flow Battery ◽  
Pvdf Membrane ◽  
Poly Vinylidene Fluoride ◽  
Vanadium Redox ◽  
Vanadium Ions ◽  
Sulfonated Poly

Sulfonated poly(ether sulfone)/poly(vinylidene fluoride) (SPES/PVDF) blends are prepared and employed as the separator for vanadium redox flow battery (VRB) to evaluate the vanadium ions permeability and cell performance. The SPES/PVDF membranes exhibit dramatically vanadium ions permeability and cell performance compared with pristine SPES and Nafion115 membrane. The vanadium ion permeability of SPES/PVDF membrane is 1 order of magnitude lower than that of Nafion115 membrane. The low-cost composite membrane exhibits a better performance than Nafion115 membrane at the same operating condition. VRB single cell with SPES/PVDF membrane shows significantly lower capacity loss, higher coulombic efficiency (>98%) and higher energy efficiency (>84%) than that with Nafion115 membrane. In the self-discharge test, S0.7P0.3 membrane shows twice longer duration in the open circuit decay than that with Nafion115 membrane. With all the good properties and low cost, the SPES/PVDF membrane is expected to have excellent commercial prospects as an ion exchange membrane for VRB systems.

Novel amphoteric ion exchange membranes by blending sulfonated poly(ether ether ketone)/quaternized poly(ether imide) for vanadium redox flow battery applications

2015 ◽  
Vol 3 (34) ◽  
pp. 17590-17597 ◽  
Author(s):  
Shuai Liu ◽  
Lihua Wang ◽  
Dan Li ◽  
Biqian Liu ◽  
Jianjun Wang ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Vanadium Redox Flow Battery ◽  
Ion Exchange Membranes ◽  
Redox Flow Battery ◽  
Flow Battery ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone ◽  
Vanadium Redox ◽  
Sulfonated Poly

For vanadium redox flow battery (VRB) applications, novel amphoteric ion exchange membranes (AIEMs) are prepared using sulfonated poly(ether ether ketone) (SPEEK) and quaternized poly(ether imide) (QAPEI) by a facile method.

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